20305226767660 has 48 divisors (see below), whose sum is σ = 47112280641216. Its totient is φ = 7311958894592.

The previous prime is 20305226767649. The next prime is 20305226767669. The reversal of 20305226767660 is 6676762250302.

It is a junction number, because it is equal to n+sod(n) for n = 20305226767598 and 20305226767607.

It is not an unprimeable number, because it can be changed into a prime (20305226767669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1298280337 + ... + 1298295976.

It is an arithmetic number, because the mean of its divisors is an integer number (981505846692).

Almost surely, 2^{20305226767660} is an apocalyptic number.

20305226767660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20305226767660 is an abundant number, since it is smaller than the sum of its proper divisors (26807053873556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20305226767660 is a wasteful number, since it uses less digits than its factorization.

20305226767660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596576362 (or 2596576360 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 52.

The spelling of 20305226767660 in words is "twenty trillion, three hundred five billion, two hundred twenty-six million, seven hundred sixty-seven thousand, six hundred sixty".